I totally agree with you... there really need to be more shows.
But one thing that should be recognized is that Universal is pretty great about making their superb character interactions very visible to guests who are not even in line for the characters. To me, they can be a mini show. I'm talking about things like: Blue, Juliet/Stegosaurus (when she appears), baby dino, Bumblebee/Optimus, Donkey, NY street window actors, and Snowball. Sometimes I just stand and watch them interact with guests, which is a small scale show in itself.
Obviously not the same thing, but at the same time, there's something to be said for "stumbling" upon a show, where you can stay for as long as you like, without having to be scheduled or stand in a huge line (for most of them).